Change the page setup by using Auto Size or selecting size and orientation

Auto Size extends the diagramming page as needed while you work, which helps you create diagrams that are larger than one printed page.

Auto Size does not change the printer paper size when it extends the page. However, you can see where page breaks will happen if you print the diagram, if the option to show page breaks is selected. (On the View tab, in the Show group, select the Page Breaks check box.)

You can specify the printer paper size and orientation for each page in a multi-page diagram independently of the other pages. If Auto Size is on, it will make the diagram page view match the printer paper size and orientation.

Quickly resize the drawing page by dragging the page edges

Position the pointer at the edge of the page, and then press the CTRL key.

The pointer changes to a double-headed arrow or a rotation cursor.

Drag the page edge to where you want it.

If you drag the corner of a page, it adjusts the page size in both dimensions. To rotate the page, move the pointer a little outside the corner of the page until it turns into the rotation cursor, then click and drag the page.

Automatically resize the drawing page to fit the shapes on the page

On the Design tab, in the Page Setup group, click Size.

Click Fit to Drawing.

The drawing page size changes to fit the drawing with only the page margin included as surrounding white space. To set the page margin, open the Page Setup dialog box as described above. On the Print Setup tab, click Setup. You can set the margins and make other adjustments.